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Mathematics 15 Online
OpenStudy (anonymous):

which of the following statements is true? a. the square root of an integer will always be an integer b.the square of an integer will always be an integer c. both a and b are true d. neither a nor b are true

OpenStudy (valpey):

Can you think of an integer whose square root is not an integer?

OpenStudy (anonymous):

d

OpenStudy (anonymous):

thanks spasta106!

OpenStudy (anonymous):

no problem :)

OpenStudy (valpey):

No, @spasta106 isn't helping.

OpenStudy (anonymous):

lol well i consider getting the answer helping

OpenStudy (valpey):

What if the answer is wrong?

OpenStudy (anonymous):

It's not.

OpenStudy (anonymous):

well i suppose ill have to take my chances:)

OpenStudy (valpey):

Wanna bet?

OpenStudy (valpey):

The square root of 2, for instance is an irrational number. Therefore a is not true.

OpenStudy (valpey):

But let us examine b. Given an integer, what kind of number do you expect when you multiply it by itself?

OpenStudy (anonymous):

well it depends on whether or not the answer is a negative or positive

OpenStudy (valpey):

Actually it doesn't. When you multiply a negative integer by itself you get a positive integer, but an integer nonetheless.

OpenStudy (valpey):

-3*-3=9, for instance.

OpenStudy (anonymous):

oo right hahaha i was thinking negative and positive

OpenStudy (valpey):

Cool. @spasta106, sorry for pwning you.

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